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Vitamin B12 - Detailed information
For healthy blood and healthy nerves
Vitamin B12 is a component of important enzymes and is involved in fundamental metabolic processes in the body, primarily in the formation of red blood cells (erythrocytes). B12 also supports healthy nerve function, as it is essential for the formation of myelin, the protective membranes of nerve cells. Vitamin B12 is also able to convert the amino acid homocysteine to methionine, thereby lowering the concentration of homocysteine in the blood, which helps prevent cardiovascular diseases. Vitamin B12 can only be produced by microorganisms and is mainly found in animal foods. Because the human body can store considerable reserves in the liver, a lack of vitamin B12 in adults only leads to deficiency symptoms after months or years.
Which foods contain vitamin B12?
Significant amounts of the vitamin are found in meat (especially liver), fish and seafood, milk, cheese, and eggs. Since vitamin B12 is produced by microorganisms, it is also found in fermented foods such as sauerkraut.
The effects of a vitamin B12 deficiency
Vitamin B12 deficiency can lead to anemia, damage to the nervous system, and other serious health problems. Symptoms include fatigue, weakness, difficulty concentrating, numbness and tingling in the extremities, and memory impairment. A long-term vitamin B12 deficiency can have serious consequences and should therefore be prevented by ensuring adequate intake of the vitamin.
The use of vitamin B12
Because vitamin B12 plays a central role in the body's energy metabolism, it is absorbed by cells in greater quantities to provide the missing energy, especially when dietary energy intake is insufficient. Vitamin B12 also contributes to the body's detoxification by supporting the conversion of homocysteine to methionine, thereby breaking down toxic metabolic products.
Energy supplier and detoxifier
Vitamin B12 plays an important role in the body's energy supply. It is required for the production of ATP (adenosine triphosphate), the cell's main energy molecule. Without sufficient vitamin B12, the body may struggle to produce enough energy, which can lead to tiredness and fatigue. Vitamin B12 also supports the body in detoxifying toxins by aiding in the conversion of homocysteine to methionine, thus reducing the body's exposure to toxic metabolic products.
